X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Fi18n.php;h=0c30fa19efad4f57ab166eb2433ee9c98fe06eaa;hb=1026ec43722b0261aa89415b7be105fc98db0115;hp=0a08886b512357f4b2dd5ef327e7e68c557655c1;hpb=441392668b621f16e35cf96abf288e0ce0c579a2;p=squirrelmail.git

diff --git a/functions/i18n.php b/functions/i18n.php
index 0a08886b..0c30fa19 100644
--- a/functions/i18n.php
+++ b/functions/i18n.php
@@ -1,4 +1,4 @@
-<?
+<?php
 
 /**
  ** i18n.php
@@ -6,77 +6,560 @@
  ** This file contains variuos functions that are needed to do
  ** internationalization of SquirrelMail.
  **
- ** Internally iso-8859-1 is used as character set. Other characters
- ** are encoded using Unicode entities according to HTML 4.0.
+ ** Internally the output character set is used. Other characters are
+ ** encoded using Unicode entities according to HTML 4.0.
+ **
+ ** $Id$
  **/
 
-   $i18n_php = true;
+   if (defined ('i18n_php'))
+      return; 
+   define ('i18n_php', true);
+
+   global $squirrelmail_language, $languages;
+   if (! isset($squirrelmail_language)) { $squirrelmail_language = ''; }
+
+   // This array specifies the available languages.
+   $languages['en']['NAME']    = 'English';
+   $languages['en']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['ca']['NAME']    = 'Catalan';
+   $languages['ca']['CHARSET'] = 'iso-8859-1';
+
+   $languages['hr']['NAME']    = 'Croatian';
+   $languages['hr']['CHARSET'] = 'iso-8859-2';
+
+   $languages['cs_CZ']['NAME']    = 'Czech';
+   $languages['cs_CZ']['CHARSET'] = 'iso-8859-2';
+   
+   $languages['da']['NAME']    = 'Danish';
+   $languages['da']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['de']['NAME']    = 'Deutsch';
+   $languages['de']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['nl']['NAME']    = 'Dutch';
+   $languages['nl']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['fr']['NAME']    = 'French';
+   $languages['fr']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['fi']['NAME']    = 'Finnish';
+   $languages['fi']['CHARSET'] = 'iso-8859-1';
+
+   $languages['hu']['NAME']    = 'Hungarian';
+   $languages['hu']['CHARSET'] = 'iso-8859-1';
+
+   $languages['is']['NAME']    = 'Icelandic';
+   $languages['is']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['it']['NAME']    = 'Italian';
+   $languages['it']['CHARSET'] = 'iso-8859-1';
+  
+   $languages['ko']['NAME']    = 'Korean';
+   $languages['ko']['CHARSET'] = 'euc-KR';
+   
+   $languages['no']['NAME']    = 'Norwegian (Bokm&aring;l)';
+   $languages['no']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['no_NO_ny']['NAME']    = 'Norwegian (Nynorsk)';
+   $languages['no_NO_ny']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['pl']['NAME']    = 'Polish';
+   $languages['pl']['CHARSET'] = 'iso-8859-2';
+   
+   $languages['pt_BR']['NAME']    = 'Portuguese (Brazil)';
+   $languages['pt_BR']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['ru']['NAME']    = 'Russian KOI8-R';
+   $languages['ru']['CHARSET'] = 'koi8-r';
+   
+   $languages['sr']['NAME']    = 'Serbian';
+   $languages['sr']['CHARSET'] = 'iso-8859-2';
+   
+   $languages['es']['NAME']    = 'Spanish';
+   $languages['es']['CHARSET'] = 'iso-8859-1';
+
+   $languages['sv']['NAME']    = 'Swedish';
+   $languages['sv']['CHARSET'] = 'iso-8859-1';
+   
+   $languages['tw']['NAME']    = 'Taiwan';
+   $languages['tw']['CHARSET'] = 'big5';
+   
 
    // Decodes a string to the internal encoding from the given charset
    function charset_decode ($charset, $string) {
+      global $debug_mime;
+
       // All HTML special characters are 7 bit and can be replaced first
       $string = htmlspecialchars ($string);
 
       $charset = strtolower($charset);
 
-      if (ereg("iso-8859-(.*)", $charset, $res)) {
-         if ($res[1] == "1")
+      if ($debug_mime) $string = $charset . ':' . $string;
+
+      if (ereg('iso-8859-([[:digit:]]+)', $charset, $res)) {
+         if ($res[1] == '1')
             return charset_decode_iso_8859_1 ($string);
-         else if ($res[1] == "15")
+         else if ($res[1] == '2')
+            return charset_decode_iso_8859_2 ($string);
+         else if ($res[1] == '7')
+            return charset_decode_iso_8859_7 ($string);
+         else if ($res[1] == '15')
             return charset_decode_iso_8859_15 ($string);
          else
             return charset_decode_iso_8859_default ($string);
-      } else if ($charset == "ns_4551-1") {
+      } else if ($charset == 'ns_4551-1') {
          return charset_decode_ns_4551_1 ($string);
-      } else 
+      } else if ($charset == 'koi8-r') {
+        return charset_decode_koi8r ($string);
+      } else
          return $string;
    }
 
    // iso-8859-1 is the same as Latin 1 and is normally used
    // in western europe.
    function charset_decode_iso_8859_1 ($string) {
-      // This is only debug code as long as the internal
-      // character set is iso-8859-1
+      global $default_charset;
 
-      // Latin small letter o with stroke
-      while (ereg("\370", $string))
-         $string = ereg_replace ("\370", "&#248;", $string);
+      if (strtolower($default_charset) == 'iso-8859-1') {
+         return $string;
+      } else { 
+         // Only do the slow convert if there are 8-bit characters
+         if (ereg("[\200-\377]", $string)) {
+            $string = str_replace("\201", '&#129;', $string);
+            $string = str_replace("\202", '&#130;', $string);
+            $string = str_replace("\203", '&#131;', $string);
+            $string = str_replace("\204", '&#132;', $string);
+            $string = str_replace("\205", '&#133;', $string);
+            $string = str_replace("\206", '&#134;', $string);
+            $string = str_replace("\207", '&#135;', $string);
+            $string = str_replace("\210", '&#136;', $string);
+            $string = str_replace("\211", '&#137;', $string);
+            $string = str_replace("\212", '&#138;', $string);
+            $string = str_replace("\213", '&#139;', $string);
+            $string = str_replace("\214", '&#140;', $string);
+            $string = str_replace("\215", '&#141;', $string);
+            $string = str_replace("\216", '&#142;', $string);
+            $string = str_replace("\217", '&#143;', $string);
+            $string = str_replace("\220", '&#144;', $string);
+            $string = str_replace("\221", '&#145;', $string);
+            $string = str_replace("\222", '&#146;', $string);
+            $string = str_replace("\223", '&#147;', $string);
+            $string = str_replace("\224", '&#148;', $string);
+            $string = str_replace("\225", '&#149;', $string);
+            $string = str_replace("\226", '&#150;', $string);
+            $string = str_replace("\227", '&#151;', $string);
+            $string = str_replace("\230", '&#152;', $string);
+            $string = str_replace("\231", '&#153;', $string);
+            $string = str_replace("\232", '&#154;', $string);
+            $string = str_replace("\233", '&#155;', $string);
+            $string = str_replace("\234", '&#156;', $string);
+            $string = str_replace("\235", '&#157;', $string);
+            $string = str_replace("\236", '&#158;', $string);
+            $string = str_replace("\237", '&#159;', $string);
+            $string = str_replace("\240", '&#160;', $string);
+            $string = str_replace("\241", '&#161;', $string);
+            $string = str_replace("\242", '&#162;', $string);
+            $string = str_replace("\243", '&#163;', $string);
+            $string = str_replace("\244", '&#164;', $string);
+            $string = str_replace("\245", '&#165;', $string);
+            $string = str_replace("\246", '&#166;', $string);
+            $string = str_replace("\247", '&#167;', $string);
+            $string = str_replace("\250", '&#168;', $string);
+            $string = str_replace("\251", '&#169;', $string);
+            $string = str_replace("\252", '&#170;', $string);
+            $string = str_replace("\253", '&#171;', $string);
+            $string = str_replace("\254", '&#172;', $string);
+            $string = str_replace("\255", '&#173;', $string);
+            $string = str_replace("\256", '&#174;', $string);
+            $string = str_replace("\257", '&#175;', $string);
+            $string = str_replace("\260", '&#176;', $string);
+            $string = str_replace("\261", '&#177;', $string);
+            $string = str_replace("\262", '&#178;', $string);
+            $string = str_replace("\263", '&#179;', $string);
+            $string = str_replace("\264", '&#180;', $string);
+            $string = str_replace("\265", '&#181;', $string);
+            $string = str_replace("\266", '&#182;', $string);
+            $string = str_replace("\267", '&#183;', $string);
+            $string = str_replace("\270", '&#184;', $string);
+            $string = str_replace("\271", '&#185;', $string);
+            $string = str_replace("\272", '&#186;', $string);
+            $string = str_replace("\273", '&#187;', $string);
+            $string = str_replace("\274", '&#188;', $string);
+            $string = str_replace("\275", '&#189;', $string);
+            $string = str_replace("\276", '&#190;', $string);
+            $string = str_replace("\277", '&#191;', $string);
+            $string = str_replace("\300", '&#192;', $string);
+            $string = str_replace("\301", '&#193;', $string);
+            $string = str_replace("\302", '&#194;', $string);
+            $string = str_replace("\303", '&#195;', $string);
+            $string = str_replace("\304", '&#196;', $string);
+            $string = str_replace("\305", '&#197;', $string);
+            $string = str_replace("\306", '&#198;', $string);
+            $string = str_replace("\307", '&#199;', $string);
+            $string = str_replace("\310", '&#200;', $string);
+            $string = str_replace("\311", '&#201;', $string);
+            $string = str_replace("\312", '&#202;', $string);
+            $string = str_replace("\313", '&#203;', $string);
+            $string = str_replace("\314", '&#204;', $string);
+            $string = str_replace("\315", '&#205;', $string);
+            $string = str_replace("\316", '&#206;', $string);
+            $string = str_replace("\317", '&#207;', $string);
+            $string = str_replace("\320", '&#208;', $string);
+            $string = str_replace("\321", '&#209;', $string);
+            $string = str_replace("\322", '&#210;', $string);
+            $string = str_replace("\323", '&#211;', $string);
+            $string = str_replace("\324", '&#212;', $string);
+            $string = str_replace("\325", '&#213;', $string);
+            $string = str_replace("\326", '&#214;', $string);
+            $string = str_replace("\327", '&#215;', $string);
+            $string = str_replace("\330", '&#216;', $string);
+            $string = str_replace("\331", '&#217;', $string);
+            $string = str_replace("\332", '&#218;', $string);
+            $string = str_replace("\333", '&#219;', $string);
+            $string = str_replace("\334", '&#220;', $string);
+            $string = str_replace("\335", '&#221;', $string);
+            $string = str_replace("\336", '&#222;', $string);
+            $string = str_replace("\337", '&#223;', $string);
+            $string = str_replace("\340", '&#224;', $string);
+            $string = str_replace("\341", '&#225;', $string);
+            $string = str_replace("\342", '&#226;', $string);
+            $string = str_replace("\343", '&#227;', $string);
+            $string = str_replace("\344", '&#228;', $string);
+            $string = str_replace("\345", '&#229;', $string);
+            $string = str_replace("\346", '&#230;', $string);
+            $string = str_replace("\347", '&#231;', $string);
+            $string = str_replace("\350", '&#232;', $string);
+            $string = str_replace("\351", '&#233;', $string);
+            $string = str_replace("\352", '&#234;', $string);
+            $string = str_replace("\353", '&#235;', $string);
+            $string = str_replace("\354", '&#236;', $string);
+            $string = str_replace("\355", '&#237;', $string);
+            $string = str_replace("\356", '&#238;', $string);
+            $string = str_replace("\357", '&#239;', $string);
+            $string = str_replace("\360", '&#240;', $string);
+            $string = str_replace("\361", '&#241;', $string);
+            $string = str_replace("\362", '&#242;', $string);
+            $string = str_replace("\363", '&#243;', $string);
+            $string = str_replace("\364", '&#244;', $string);
+            $string = str_replace("\365", '&#245;', $string);
+            $string = str_replace("\366", '&#246;', $string);
+            $string = str_replace("\367", '&#247;', $string);
+            $string = str_replace("\370", '&#248;', $string);
+            $string = str_replace("\371", '&#249;', $string);
+            $string = str_replace("\372", '&#250;', $string);
+            $string = str_replace("\373", '&#251;', $string);
+            $string = str_replace("\374", '&#252;', $string);
+            $string = str_replace("\375", '&#253;', $string);
+            $string = str_replace("\376", '&#254;', $string);
+            $string = str_replace("\377", '&#255;', $string);
+         }
+      }
 
       return ($string);
    }
 
-   // iso-8859-15 is Latin 15 and has very much the same use as Latin 1
+   // iso-8859-2 is used for some eastern European languages
+   function charset_decode_iso_8859_2 ($string) {
+      global $default_charset;
+
+      if (strtolower($default_charset) == 'iso-8859-2')
+         return $string;
+     
+      // Only do the slow convert if there are 8-bit characters
+      if (! ereg("[\200-\377]", $string))
+         return $string;
+	 
+      // NO-BREAK SPACE
+      $string = str_replace("\240", '&#160;', $string);
+      // LATIN CAPITAL LETTER A WITH OGONEK
+      $string = str_replace("\241", '&#260;', $string);
+      // BREVE
+      $string = str_replace("\242", '&#728;', $string);
+      // LATIN CAPITAL LETTER L WITH STROKE
+      $string = str_replace("\243", '&#321;', $string);
+      // CURRENCY SIGN
+      $string = str_replace("\244", '&#164;', $string);
+      // LATIN CAPITAL LETTER L WITH CARON
+      $string = str_replace("\245", '&#317;', $string);
+      // LATIN CAPITAL LETTER S WITH ACUTE
+      $string = str_replace("\246", '&#346;', $string);
+      // SECTION SIGN
+      $string = str_replace("\247", '&#167;', $string);
+      // DIAERESIS
+      $string = str_replace("\250", '&#168;', $string);
+      // LATIN CAPITAL LETTER S WITH CARON
+      $string = str_replace("\251", '&#352;', $string);
+      // LATIN CAPITAL LETTER S WITH CEDILLA
+      $string = str_replace("\252", '&#350;', $string);
+      // LATIN CAPITAL LETTER T WITH CARON
+      $string = str_replace("\253", '&#356;', $string);
+      // LATIN CAPITAL LETTER Z WITH ACUTE
+      $string = str_replace("\254", '&#377;', $string);
+      // SOFT HYPHEN
+      $string = str_replace("\255", '&#173;', $string);
+      // LATIN CAPITAL LETTER Z WITH CARON
+      $string = str_replace("\256", '&#381;', $string);
+      // LATIN CAPITAL LETTER Z WITH DOT ABOVE
+      $string = str_replace("\257", '&#379;', $string);
+      // DEGREE SIGN
+      $string = str_replace("\260", '&#176;', $string);
+      // LATIN SMALL LETTER A WITH OGONEK
+      $string = str_replace("\261", '&#261;', $string);
+      // OGONEK
+      $string = str_replace("\262", '&#731;', $string);
+      // LATIN SMALL LETTER L WITH STROKE
+      $string = str_replace("\263", '&#322;', $string);
+      // ACUTE ACCENT
+      $string = str_replace("\264", '&#180;', $string);
+      // LATIN SMALL LETTER L WITH CARON
+      $string = str_replace("\265", '&#318;', $string);
+      // LATIN SMALL LETTER S WITH ACUTE
+      $string = str_replace("\266", '&#347;', $string);
+      // CARON
+      $string = str_replace("\267", '&#711;', $string);
+      // CEDILLA
+      $string = str_replace("\270", '&#184;', $string);
+      // LATIN SMALL LETTER S WITH CARON
+      $string = str_replace("\271", '&#353;', $string);
+      // LATIN SMALL LETTER S WITH CEDILLA
+      $string = str_replace("\272", '&#351;', $string);
+      // LATIN SMALL LETTER T WITH CARON
+      $string = str_replace("\273", '&#357;', $string);
+      // LATIN SMALL LETTER Z WITH ACUTE
+      $string = str_replace("\274", '&#378;', $string);
+      // DOUBLE ACUTE ACCENT
+      $string = str_replace("\275", '&#733;', $string);
+      // LATIN SMALL LETTER Z WITH CARON
+      $string = str_replace("\276", '&#382;', $string);
+      // LATIN SMALL LETTER Z WITH DOT ABOVE
+      $string = str_replace("\277", '&#380;', $string);
+      // LATIN CAPITAL LETTER R WITH ACUTE
+      $string = str_replace("\300", '&#340;', $string);
+      // LATIN CAPITAL LETTER A WITH ACUTE
+      $string = str_replace("\301", '&#193;', $string);
+      // LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+      $string = str_replace("\302", '&#194;', $string);
+      // LATIN CAPITAL LETTER A WITH BREVE
+      $string = str_replace("\303", '&#258;', $string);
+      // LATIN CAPITAL LETTER A WITH DIAERESIS
+      $string = str_replace("\304", '&#196;', $string);
+      // LATIN CAPITAL LETTER L WITH ACUTE
+      $string = str_replace("\305", '&#313;', $string);
+      // LATIN CAPITAL LETTER C WITH ACUTE
+      $string = str_replace("\306", '&#262;', $string);
+      // LATIN CAPITAL LETTER C WITH CEDILLA
+      $string = str_replace("\307", '&#199;', $string);
+      // LATIN CAPITAL LETTER C WITH CARON
+      $string = str_replace("\310", '&#268;', $string);
+      // LATIN CAPITAL LETTER E WITH ACUTE
+      $string = str_replace("\311", '&#201;', $string);
+      // LATIN CAPITAL LETTER E WITH OGONEK
+      $string = str_replace("\312", '&#280;', $string);
+      // LATIN CAPITAL LETTER E WITH DIAERESIS
+      $string = str_replace("\313", '&#203;', $string);
+      // LATIN CAPITAL LETTER E WITH CARON
+      $string = str_replace("\314", '&#282;', $string);
+      // LATIN CAPITAL LETTER I WITH ACUTE
+      $string = str_replace("\315", '&#205;', $string);
+      // LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+      $string = str_replace("\316", '&#206;', $string);
+      // LATIN CAPITAL LETTER D WITH CARON
+      $string = str_replace("\317", '&#270;', $string);
+      // LATIN CAPITAL LETTER D WITH STROKE
+      $string = str_replace("\320", '&#272;', $string);
+      // LATIN CAPITAL LETTER N WITH ACUTE
+      $string = str_replace("\321", '&#323;', $string);
+      // LATIN CAPITAL LETTER N WITH CARON
+      $string = str_replace("\322", '&#327;', $string);
+      // LATIN CAPITAL LETTER O WITH ACUTE
+      $string = str_replace("\323", '&#211;', $string);
+      // LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+      $string = str_replace("\324", '&#212;', $string);
+      // LATIN CAPITAL LETTER O WITH DOUBLE ACUTE
+      $string = str_replace("\325", '&#336;', $string);
+      // LATIN CAPITAL LETTER O WITH DIAERESIS
+      $string = str_replace("\326", '&#214;', $string);
+      // MULTIPLICATION SIGN
+      $string = str_replace("\327", '&#215;', $string);
+      // LATIN CAPITAL LETTER R WITH CARON
+      $string = str_replace("\330", '&#344;', $string);
+      // LATIN CAPITAL LETTER U WITH RING ABOVE
+      $string = str_replace("\331", '&#366;', $string);
+      // LATIN CAPITAL LETTER U WITH ACUTE
+      $string = str_replace("\332", '&#218;', $string);
+      // LATIN CAPITAL LETTER U WITH DOUBLE ACUTE
+      $string = str_replace("\333", '&#368;', $string);
+      // LATIN CAPITAL LETTER U WITH DIAERESIS
+      $string = str_replace("\334", '&#220;', $string);
+      // LATIN CAPITAL LETTER Y WITH ACUTE
+      $string = str_replace("\335", '&#221;', $string);
+      // LATIN CAPITAL LETTER T WITH CEDILLA
+      $string = str_replace("\336", '&#354;', $string);
+      // LATIN SMALL LETTER SHARP S
+      $string = str_replace("\337", '&#223;', $string);
+      // LATIN SMALL LETTER R WITH ACUTE
+      $string = str_replace("\340", '&#341;', $string);
+      // LATIN SMALL LETTER A WITH ACUTE
+      $string = str_replace("\341", '&#225;', $string);
+      // LATIN SMALL LETTER A WITH CIRCUMFLEX
+      $string = str_replace("\342", '&#226;', $string);
+      // LATIN SMALL LETTER A WITH BREVE
+      $string = str_replace("\343", '&#259;', $string);
+      // LATIN SMALL LETTER A WITH DIAERESIS
+      $string = str_replace("\344", '&#228;', $string);
+      // LATIN SMALL LETTER L WITH ACUTE
+      $string = str_replace("\345", '&#314;', $string);
+      // LATIN SMALL LETTER C WITH ACUTE
+      $string = str_replace("\346", '&#263;', $string);
+      // LATIN SMALL LETTER C WITH CEDILLA
+      $string = str_replace("\347", '&#231;', $string);
+      // LATIN SMALL LETTER C WITH CARON
+      $string = str_replace("\350", '&#269;', $string);
+      // LATIN SMALL LETTER E WITH ACUTE
+      $string = str_replace("\351", '&#233;', $string);
+      // LATIN SMALL LETTER E WITH OGONEK
+      $string = str_replace("\352", '&#281;', $string);
+      // LATIN SMALL LETTER E WITH DIAERESIS
+      $string = str_replace("\353", '&#235;', $string);
+      // LATIN SMALL LETTER E WITH CARON
+      $string = str_replace("\354", '&#283;', $string);
+      // LATIN SMALL LETTER I WITH ACUTE
+      $string = str_replace("\355", '&#237;', $string);
+      // LATIN SMALL LETTER I WITH CIRCUMFLEX
+      $string = str_replace("\356", '&#238;', $string);
+      // LATIN SMALL LETTER D WITH CARON
+      $string = str_replace("\357", '&#271;', $string);
+      // LATIN SMALL LETTER D WITH STROKE
+      $string = str_replace("\360", '&#273;', $string);
+      // LATIN SMALL LETTER N WITH ACUTE
+      $string = str_replace("\361", '&#324;', $string);
+      // LATIN SMALL LETTER N WITH CARON
+      $string = str_replace("\362", '&#328;', $string);
+      // LATIN SMALL LETTER O WITH ACUTE
+      $string = str_replace("\363", '&#243;', $string);
+      // LATIN SMALL LETTER O WITH CIRCUMFLEX
+      $string = str_replace("\364", '&#244;', $string);
+      // LATIN SMALL LETTER O WITH DOUBLE ACUTE
+      $string = str_replace("\365", '&#337;', $string);
+      // LATIN SMALL LETTER O WITH DIAERESIS
+      $string = str_replace("\366", '&#246;', $string);
+      // DIVISION SIGN
+      $string = str_replace("\367", '&#247;', $string);
+      // LATIN SMALL LETTER R WITH CARON
+      $string = str_replace("\370", '&#345;', $string);
+      // LATIN SMALL LETTER U WITH RING ABOVE
+      $string = str_replace("\371", '&#367;', $string);
+      // LATIN SMALL LETTER U WITH ACUTE
+      $string = str_replace("\372", '&#250;', $string);
+      // LATIN SMALL LETTER U WITH DOUBLE ACUTE
+      $string = str_replace("\373", '&#369;', $string);
+      // LATIN SMALL LETTER U WITH DIAERESIS
+      $string = str_replace("\374", '&#252;', $string);
+      // LATIN SMALL LETTER Y WITH ACUTE
+      $string = str_replace("\375", '&#253;', $string);
+      // LATIN SMALL LETTER T WITH CEDILLA
+      $string = str_replace("\376", '&#355;', $string);
+      // DOT ABOVE
+      $string = str_replace("\377", '&#729;', $string);
+
+      return $string;
+   }
+
+   // iso-8859-7 is Greek.
+   function charset_decode_iso_8859_7 ($string) {
+      global $default_charset;
+
+      if (strtolower($default_charset) == 'iso-8859-7')
+         return $string;
+	 
+      // Only do the slow convert if there are 8-bit characters
+      if (!ereg("[\200-\377]", $string))
+         return $string;
+	 
+      // Some diverse characters in the beginning
+      $string = str_replace("\240", '&#160;', $string);
+      $string = str_replace("\241", '&#8216;', $string);
+      $string = str_replace("\242", '&#8217;', $string);
+      $string = str_replace("\243", '&#163;', $string);
+      $string = str_replace("\246", '&#166;', $string);
+      $string = str_replace("\247", '&#167;', $string);
+      $string = str_replace("\250", '&#168;', $string);
+      $string = str_replace("\251", '&#169;', $string);
+      $string = str_replace("\253", '&#171;', $string);
+      $string = str_replace("\254", '&#172;', $string);
+      $string = str_replace("\255", '&#173;', $string);
+      $string = str_replace("\257", '&#8213;', $string);
+      $string = str_replace("\260", '&#176;', $string);
+      $string = str_replace("\261", '&#177;', $string);
+      $string = str_replace("\262", '&#178;', $string);
+      $string = str_replace("\263", '&#179;', $string);
+      
+      // Horizontal bar (parentheki pavla)
+      $string = str_replace ("\257", '&#8213;', $string);
+      
+      // ISO-8859-7 characters from 11/04 (0xB4) to 11/06 (0xB6)
+      // These are Unicode 900-902
+      while (ereg("([\264-\266])", $string, $res)) {
+         $replace = '&#' . (ord($res[1])+720) . ';';
+         $string = str_replace($res[1], $replace, $string);
+      }
+         
+      // 11/07 (0xB7) Middle dot is the same in iso-8859-1
+      $string = str_replace("\267", '&#183;', $string);
+      
+      // ISO-8859-7 characters from 11/08 (0xB8) to 11/10 (0xBA)
+      // These are Unicode 900-902
+      while (ereg("([\270-\272])", $string, $res)) {
+         $replace = '&#' . (ord($res[1])+720) . ";";
+	 $string = str_replace($res[1], $replace, $string);
+      }
+         
+      // 11/11 (0xBB) Right angle quotation mark is the same as in
+      // iso-8859-1
+      $string = str_replace("\273", '&#187;', $string);
+         
+      // And now the rest of the charset
+      while (ereg("([\274-\376])", $string, $res)) {
+         $replace = '&#' . (ord($res[1])+720) . ';';
+	 $string = str_replace($res[1], $replace, $string);
+      }
+
+      return $string;
+   }
+
+   // iso-8859-15 is Latin 9 and has very much the same use as Latin 1
    // but has the Euro symbol and some characters needed for French.
    function charset_decode_iso_8859_15 ($string) {
       // Euro sign
-      while (ereg("\244", $replace))
-         $string = ereg_replace ("\244", "&#8364;", $string);
+      $string = str_replace ("\244", '&#8364;', $string);
       // Latin capital letter S with caron
-      while (ereg("\246", $string))
-         $string = ereg_replace ("\244", "&#352;", $string);
+      $string = str_replace ("\244", '&#352;', $string);
       // Latin small letter s with caron
-      while (ereg("\250", $string))
-         $string = ereg_replace ("\250", "&#353;", $string);
+      $string = str_replace ("\250", '&#353;', $string);
       // Latin capital letter Z with caron
-      while (ereg("\264", $string))
-         $string = ereg_replace ("\264", "&#381;", $string);
+      $string = str_replace ("\264", '&#381;', $string);
       // Latin small letter z with caron
-      while (ereg("\270", $string))
-         $string = ereg_replace ("\270", "&#382;", $string);
+      $string = str_replace ("\270", '&#382;', $string);
       // Latin capital ligature OE
-      while (ereg("\274", $string))
-         $string = ereg_replace ("\274", "&#338;", $string);
+      $string = str_replace ("\274", '&#338;', $string);
       // Latin small ligature oe
-      while (ereg("\275", $string))
-         $string = ereg_replace ("\275", "&#339;", $string);
+      $string = str_replace ("\275", '&#339;', $string);
       // Latin capital letter Y with diaeresis
-      while (ereg("\276", $string))
-         $string = ereg_replace ("\276", "&#376;", $string);
+      $string = str_replace ("\276", '&#376;', $string);
 
-      return ($string);
+      return (charset_decode_iso_8859_1($string));
    }
 
-   // Remove al 8 bit characters from all other ISO-8859 character sets
+   // ISO-8859-15 is Cyrillic
+   function charset_decode_iso_8859_5 ($string) {
+      // Convert to KOI8-R, then return this decoded.
+      $string = convert_cyr_string($string, 'i', 'k');
+      return charset_decode_koi8r($string);
+   }
+
+   // Remove all 8 bit characters from all other ISO-8859 character sets
    function charset_decode_iso_8859_default ($string) {
       return (strtr($string, "\240\241\242\243\244\245\246\247".
                     "\250\251\252\253\254\255\256\257".
@@ -108,4 +591,226 @@
       return strtr ($string, "[\\]{|}", "ÆØÅæøå");
    }
 
+   // KOI8-R is used to encode Russian mail (Cyrrilic). Defined in RFC
+   // 1489.
+   function charset_decode_koi8r ($string) {
+      global $default_charset;
+
+      if ($default_charset == 'koi8-r')
+         return $string;
+	 
+      // Convert to Unicode HTML entities.
+      // This code is rather ineffective.
+      $string = str_replace("\200", '&#9472;', $string);
+      $string = str_replace("\201", '&#9474;', $string);
+      $string = str_replace("\202", '&#9484;', $string);
+      $string = str_replace("\203", '&#9488;', $string);
+      $string = str_replace("\204", '&#9492;', $string);
+      $string = str_replace("\205", '&#9496;', $string);
+      $string = str_replace("\206", '&#9500;', $string);
+      $string = str_replace("\207", '&#9508;', $string);
+      $string = str_replace("\210", '&#9516;', $string);
+      $string = str_replace("\211", '&#9524;', $string);
+      $string = str_replace("\212", '&#9532;', $string);
+      $string = str_replace("\213", '&#9600;', $string);
+      $string = str_replace("\214", '&#9604;', $string);
+      $string = str_replace("\215", '&#9608;', $string);
+      $string = str_replace("\216", '&#9612;', $string);
+      $string = str_replace("\217", '&#9616;', $string);
+      $string = str_replace("\220", '&#9617;', $string);
+      $string = str_replace("\221", '&#9618;', $string);
+      $string = str_replace("\222", '&#9619;', $string);
+      $string = str_replace("\223", '&#8992;', $string);
+      $string = str_replace("\224", '&#9632;', $string);
+      $string = str_replace("\225", '&#8729;', $string);
+      $string = str_replace("\226", '&#8730;', $string);
+      $string = str_replace("\227", '&#8776;', $string);
+      $string = str_replace("\230", '&#8804;', $string);
+      $string = str_replace("\231", '&#8805;', $string);
+      $string = str_replace("\232", '&#160;', $string);
+      $string = str_replace("\233", '&#8993;', $string);
+      $string = str_replace("\234", '&#176;', $string);
+      $string = str_replace("\235", '&#178;', $string);
+      $string = str_replace("\236", '&#183;', $string);
+      $string = str_replace("\237", '&#247;', $string);
+      $string = str_replace("\240", '&#9552;', $string);
+      $string = str_replace("\241", '&#9553;', $string);
+      $string = str_replace("\242", '&#9554;', $string);
+      $string = str_replace("\243", '&#1105;', $string);
+      $string = str_replace("\244", '&#9555;', $string);
+      $string = str_replace("\245", '&#9556;', $string);
+      $string = str_replace("\246", '&#9557;', $string);
+      $string = str_replace("\247", '&#9558;', $string);
+      $string = str_replace("\250", '&#9559;', $string);
+      $string = str_replace("\251", '&#9560;', $string);
+      $string = str_replace("\252", '&#9561;', $string);
+      $string = str_replace("\253", '&#9562;', $string);
+      $string = str_replace("\254", '&#9563;', $string);
+      $string = str_replace("\255", '&#9564;', $string);
+      $string = str_replace("\256", '&#9565;', $string);
+      $string = str_replace("\257", '&#9566;', $string);
+      $string = str_replace("\260", '&#9567;', $string);
+      $string = str_replace("\261", '&#9568;', $string);
+      $string = str_replace("\262", '&#9569;', $string);
+      $string = str_replace("\263", '&#1025;', $string);
+      $string = str_replace("\264", '&#9570;', $string);
+      $string = str_replace("\265", '&#9571;', $string);
+      $string = str_replace("\266", '&#9572;', $string);
+      $string = str_replace("\267", '&#9573;', $string);
+      $string = str_replace("\270", '&#9574;', $string);
+      $string = str_replace("\271", '&#9575;', $string);
+      $string = str_replace("\272", '&#9576;', $string);
+      $string = str_replace("\273", '&#9577;', $string);
+      $string = str_replace("\274", '&#9578;', $string);
+      $string = str_replace("\275", '&#9579;', $string);
+      $string = str_replace("\276", '&#9580;', $string);
+      $string = str_replace("\277", '&#169;', $string);
+      $string = str_replace("\300", '&#1102;', $string);
+      $string = str_replace("\301", '&#1072;', $string);
+      $string = str_replace("\302", '&#1073;', $string);
+      $string = str_replace("\303", '&#1094;', $string);
+      $string = str_replace("\304", '&#1076;', $string);
+      $string = str_replace("\305", '&#1077;', $string);
+      $string = str_replace("\306", '&#1092;', $string);
+      $string = str_replace("\307", '&#1075;', $string);
+      $string = str_replace("\310", '&#1093;', $string);
+      $string = str_replace("\311", '&#1080;', $string);
+      $string = str_replace("\312", '&#1081;', $string);
+      $string = str_replace("\313", '&#1082;', $string);
+      $string = str_replace("\314", '&#1083;', $string);
+      $string = str_replace("\315", '&#1084;', $string);
+      $string = str_replace("\316", '&#1085;', $string);
+      $string = str_replace("\317", '&#1086;', $string);
+      $string = str_replace("\320", '&#1087;', $string);
+      $string = str_replace("\321", '&#1103;', $string);
+      $string = str_replace("\322", '&#1088;', $string);
+      $string = str_replace("\323", '&#1089;', $string);
+      $string = str_replace("\324", '&#1090;', $string);
+      $string = str_replace("\325", '&#1091;', $string);
+      $string = str_replace("\326", '&#1078;', $string);
+      $string = str_replace("\327", '&#1074;', $string);
+      $string = str_replace("\330", '&#1100;', $string);
+      $string = str_replace("\331", '&#1099;', $string);
+      $string = str_replace("\332", '&#1079;', $string);
+      $string = str_replace("\333", '&#1096;', $string);
+      $string = str_replace("\334", '&#1101;', $string);
+      $string = str_replace("\335", '&#1097;', $string);
+      $string = str_replace("\336", '&#1095;', $string);
+      $string = str_replace("\337", '&#1098;', $string);
+      $string = str_replace("\340", '&#1070;', $string);
+      $string = str_replace("\341", '&#1040;', $string);
+      $string = str_replace("\342", '&#1041;', $string);
+      $string = str_replace("\343", '&#1062;', $string);
+      $string = str_replace("\344", '&#1044;', $string);
+      $string = str_replace("\345", '&#1045;', $string);
+      $string = str_replace("\346", '&#1060;', $string);
+      $string = str_replace("\347", '&#1043;', $string);
+      $string = str_replace("\350", '&#1061;', $string);
+      $string = str_replace("\351", '&#1048;', $string);
+      $string = str_replace("\352", '&#1049;', $string);
+      $string = str_replace("\353", '&#1050;', $string);
+      $string = str_replace("\354", '&#1051;', $string);
+      $string = str_replace("\355", '&#1052;', $string);
+      $string = str_replace("\356", '&#1053;', $string);
+      $string = str_replace("\357", '&#1054;', $string);
+      $string = str_replace("\360", '&#1055;', $string);
+      $string = str_replace("\361", '&#1071;', $string);
+      $string = str_replace("\362", '&#1056;', $string);
+      $string = str_replace("\363", '&#1057;', $string);
+      $string = str_replace("\364", '&#1058;', $string);
+      $string = str_replace("\365", '&#1059;', $string);
+      $string = str_replace("\366", '&#1046;', $string);
+      $string = str_replace("\367", '&#1042;', $string);
+      $string = str_replace("\370", '&#1068;', $string);
+      $string = str_replace("\371", '&#1067;', $string);
+      $string = str_replace("\372", '&#1047;', $string);
+      $string = str_replace("\373", '&#1064;', $string);
+      $string = str_replace("\374", '&#1069;', $string);
+      $string = str_replace("\375", '&#1065;', $string);
+      $string = str_replace("\376", '&#1063;', $string);
+      $string = str_replace("\377", '&#1066;', $string);
+      
+      return $string;
+   }
+
+
+   global $use_gettext;
+   
+   // Detect whether gettext is installed.
+   $gettext_flags = 0;
+   if (function_exists('_')) $gettext_flags += 1;
+   if (function_exists('bindtextdomain')) $gettext_flags += 2;
+   if (function_exists('textdomain')) $gettext_flags += 4;
+
+   // If gettext is fully loaded, cool
+   if ($gettext_flags == 7)
+      $use_gettext = true;
+   // If we can fake gettext, try that
+   elseif ($gettext_flags == 0) {
+      $use_gettext = true;
+      include('../functions/gettext.php');
+   } else {
+      // Uh-ho.  A weird install
+      if (! $gettext_flags & 1) {
+         function _($str) { return $str; };
+      }
+      if (! $gettext_flags & 2) {
+         function bindtextdomain() { return; }
+      }
+      if (! $gettext_flags & 4) {
+         function textdomain() { return; }
+      }
+   }
+
+
+   // Set up the language to be output
+   // if $do_search is true, then scan the browser information
+   // for a possible language that we know
+   function set_up_language($sm_language, $do_search = false)
+   {
+      static $SetupAlready = 0;
+      global $HTTP_ACCEPT_LANGUAGE, $use_gettext, $languages, 
+          $squirrelmail_language;
+      
+      if ($SetupAlready)
+         return;
+
+      $SetupAlready = 1;
+      
+      $charset_headers_sent=false;
+      
+      if ($do_search && ! $sm_language && isset($HTTP_ACCEPT_LANGUAGE)) {
+         $sm_language = substr($HTTP_ACCEPT_LANGUAGE, 0, 2);
+      }
+
+      if (isset($sm_language) && $use_gettext &&
+          $squirrelmail_language != '' &&
+ 	  isset($languages[$sm_language]['CHARSET'])) {
+         if ((ini_get('safe_mode') == FALSE) && (getenv('LC_ALL') != $sm_language)) {
+           putenv('LC_ALL=' . $sm_language);
+         }
+         setlocale('LC_ALL', $sm_language);
+         bindtextdomain('squirrelmail', '../locale/');
+         textdomain('squirrelmail');
+         header ('Content-Type: text/html; charset=' . $languages[$sm_language]['CHARSET']);
+      }
+   }
+
+   function set_my_charset(){
+     //
+     // There can be a $default_charset setting in the
+     // config.php file, but the user may have a different language
+     // selected for a user interface. This function checks the
+     // language selected by the user and tags the outgoing messages 
+     // with the appropriate charset corresponding to the language
+     // selection. This is "more right" (tm), than just stamping the 
+     // message blindly with the system-wide $default_charset.
+     //
+     global $data_dir, $username, $default_charset, $languages;
+     $my_language = getPref($data_dir, $username, "language");
+     if (!$my_language) return;
+     $my_charset=$languages[$my_language]['CHARSET'];
+     if ($my_charset) $default_charset=$my_charset;
+   }
+
 ?>